<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$

/**
 +------------------------------------------------------------------------------
 * Think公共函数库
 +------------------------------------------------------------------------------
 * @category   Think
 * @package  Common
 * @author   liu21st <liu21st@gmail.com>
 * @version  $Id$
 +------------------------------------------------------------------------------
 */

// URL组装 支持不同模式和路由
function U($url,$params=array(),$redirect=false,$suffix=true) {
	if(0===strpos($url,'/'))
	$url   =  substr($url,1);
	if(!strpos($url,'://')) // 没有指定项目名 使用当前项目
	$url   =  APP_NAME.'://'.$url;
	if(stripos($url,'@?')) { // 给路由传递参数
		$url   =  str_replace('@?','@think?',$url);
	}elseif(stripos($url,'@')) { // 没有参数的路由
		$url   =  $url.MODULE_NAME;
	}
	// 分析URL地址
	$array   =  parse_url($url);
	$app      =  isset($array['scheme'])?   $array['scheme']  :APP_NAME;
	$route    =  isset($array['user'])?$array['user']:'';
	if(defined('GROUP_NAME') && strcasecmp(GROUP_NAME,C('DEFAULT_GROUP')))
	$group=  GROUP_NAME;
	if(isset($array['path'])) {
		$action  =  substr($array['path'],1);
		if(!isset($array['host'])) {
			// 没有指定模块名
			$module = MODULE_NAME;
		}else{// 指定模块
			if(strpos($array['host'],'-')) {
				list($group,$module) = explode('-',$array['host']);
			}else{
				$module = $array['host'];
			}
		}
	}else{ // 只指定操作
		$module = MODULE_NAME;
		$action   =  $array['host'];
	}
	if(isset($array['query'])) {
		parse_str($array['query'],$query);
		$params = array_merge($query,$params);
	}

	if(C('URL_DISPATCH_ON') && C('URL_MODEL')>0) {
		$depr = C('URL_PATHINFO_MODEL')==2?C('URL_PATHINFO_DEPR'):'/';
		$str    =   $depr;
		foreach ($params as $var=>$val)
		$str .= $var.$depr.$val.$depr;
		$str = substr($str,0,-1);
		$group   = isset($group)?$group.$depr:'';
		if(!empty($route)) {
			$url    =   str_replace(APP_NAME,$app,__APP__).'/'.$group.$route.$str;
		}else{
			$url    =   str_replace(APP_NAME,$app,__APP__).'/'.$group.$module.$depr.$action.$str;
		}
		if($suffix && C('URL_HTML_SUFFIX'))
		$url .= C('URL_HTML_SUFFIX');
	}else{
		$params =   http_build_query($params);
		if(isset($group)) {
			$url    =   str_replace(APP_NAME,$app,__APP__).'?'.C('VAR_GROUP').'='.$group.'&'.C('VAR_MODULE').'='.$module.'&'.C('VAR_ACTION').'='.$action.'&'.$params;
		}else{
			$url    =   str_replace(APP_NAME,$app,__APP__).'?'.C('VAR_MODULE').'='.$module.'&'.C('VAR_ACTION').'='.$action.'&'.$params;
		}
	}
	if($redirect)
	redirect($url);
	else
	return $url;
}

/**
 +----------------------------------------------------------
 * 字符串命名风格转换
 * type
 * =0 将Java风格转换为C的风格
 * =1 将C风格转换为Java的风格
 +----------------------------------------------------------
 * @access protected
 +----------------------------------------------------------
 * @param string $name 字符串
 * @param integer $type 转换类型
 +----------------------------------------------------------
 * @return string
 +----------------------------------------------------------
 */
function parse_name($name,$type=0) {
	if($type) {
		return ucfirst(preg_replace("/_([a-zA-Z])/e", "strtoupper('\\1')", $name));
	}else{
		$name = preg_replace("/[A-Z]/", "_\\0", $name);
		return strtolower(trim($name, "_"));
	}
}

// 错误输出
function halt($error) {
	if(IS_CLI)   exit ($error);
	$e = array();
	if(C('APP_DEBUG')){
		//调试模式下输出错误信息
		if(!is_array($error)) {
			$trace = debug_backtrace();
			$e['message'] = $error;
			$e['file'] = $trace[0]['file'];
			$e['class'] = $trace[0]['class'];
			$e['function'] = $trace[0]['function'];
			$e['line'] = $trace[0]['line'];
			$traceInfo='';
			$time = date("y-m-d H:i:m");
			foreach($trace as $t)
			{
				$traceInfo .= '['.$time.'] '.$t['file'].' ('.$t['line'].') ';
				$traceInfo .= $t['class'].$t['type'].$t['function'].'(';
				$traceInfo .= implode(', ', $t['args']);
				$traceInfo .=")<br/>";
			}
			$e['trace']  = $traceInfo;
		}else {
			$e = $error;
		}
		// 包含异常页面模板
		include C('TMPL_EXCEPTION_FILE');
	}
	else
	{
		//否则定向到错误页面
		$error_page =   C('ERROR_PAGE');
		if(!empty($error_page)){
			redirect($error_page);
		}else {
			if(C('SHOW_ERROR_MSG'))
			$e['message'] =  is_array($error)?$error['message']:$error;
			else
			$e['message'] = C('ERROR_MESSAGE');
			// 包含异常页面模板
			include C('TMPL_EXCEPTION_FILE');
		}
	}
	exit;
}

// URL重定向
function redirect($url,$time=0,$msg='')
{
	//多行URL地址支持
	$url = str_replace(array("\n", "\r"), '', $url);
	if(empty($msg))
	$msg    =   "系统将在{$time}秒之后自动跳转到{$url}！";
	if (!headers_sent()) {
		// redirect
		if(0===$time) {
			header("Location: ".$url);
		}else {
			header("refresh:{$time};url={$url}");
			echo($msg);
		}
		exit();
	}else {
		$str    = "<meta http-equiv='Refresh' content='{$time};URL={$url}'>";
		if($time!=0)
		$str   .=   $msg;
		exit($str);
	}
}

// 自定义异常处理
function throw_exception($msg,$type='ThinkException',$code=0)
{
	if(IS_CLI)   exit($msg);
	if(class_exists($type,false))
	throw new $type($msg,$code,true);
	else
	halt($msg);        // 异常类型不存在则输出错误信息字串
}

// 区间调试开始
function debug_start($label='')
{
	$GLOBALS[$label]['_beginTime'] = microtime(TRUE);
	if ( MEMORY_LIMIT_ON )  $GLOBALS[$label]['_beginMem'] = memory_get_usage();
}

// 区间调试结束，显示指定标记到当前位置的调试
function debug_end($label='')
{
	$GLOBALS[$label]['_endTime'] = microtime(TRUE);
	echo '<div style="text-align:center;width:100%">Process '.$label.': Times '.number_format($GLOBALS[$label]['_endTime']-$GLOBALS[$label]['_beginTime'],6).'s ';
	if ( MEMORY_LIMIT_ON )  {
		$GLOBALS[$label]['_endMem'] = memory_get_usage();
		echo ' Memories '.number_format(($GLOBALS[$label]['_endMem']-$GLOBALS[$label]['_beginMem'])/1024).' k';
	}
	echo '</div>';
}

// 浏览器友好的变量输出
function dump($var, $echo=true,$label=null, $strict=true)
{
	$label = ($label===null) ? '' : rtrim($label) . ' ';
	if(!$strict) {
		if (ini_get('html_errors')) {
			$output = print_r($var, true);
			$output = "<pre>".$label.htmlspecialchars($output,ENT_QUOTES)."</pre>";
		} else {
			$output = $label . " : " . print_r($var, true);
		}
	}else {
		ob_start();
		var_dump($var);
		$output = ob_get_clean();
		if(!extension_loaded('xdebug')) {
			$output = preg_replace("/\]\=\>\n(\s+)/m", "] => ", $output);
			$output = '<pre>'. $label. htmlspecialchars($output, ENT_QUOTES). '</pre>';
		}
	}
	if ($echo) {
		echo($output);
		return null;
	}else
	return $output;
}

// 取得对象实例 支持调用类的静态方法
function get_instance_of($name,$method='',$args=array())
{
	static $_instance = array();
	$identify   =   empty($args)?$name.$method:$name.$method.to_guid_string($args);
	if (!isset($_instance[$identify])) {
		if(class_exists($name)){
			$o = new $name();
			if(method_exists($o,$method)){
				if(!empty($args)) {
					$_instance[$identify] = call_user_func_array(array(&$o, $method), $args);
				}else {
					$_instance[$identify] = $o->$method();
				}
			}
			else
			$_instance[$identify] = $o;
		}
		else
		halt(L('_CLASS_NOT_EXIST_').':'.$name);
	}
	return $_instance[$identify];
}

/**
 +----------------------------------------------------------
 * 系统自动加载ThinkPHP基类库和当前项目的model和Action对象
 * 并且支持配置自动加载路径
 +----------------------------------------------------------
 * @param string $name 对象类名
 +----------------------------------------------------------
 * @return void
 +----------------------------------------------------------
 */
function __autoload($name)
{
	// 检查是否存在别名定义
	if(alias_import($name)) return ;
	// 自动加载当前项目的Actioon类和Model类
	if(substr($name,-5)=="Model") {
		require_cache(LIB_PATH.'Model/'.$name.'.class.php');
	}elseif(substr($name,-6)=="Action"){
		require_cache(LIB_PATH.'Action/'.$name.'.class.php');
	}else {
		// 根据自动加载路径设置进行尝试搜索
		if(C('APP_AUTOLOAD_PATH')) {
			$paths  =   explode(',',C('APP_AUTOLOAD_PATH'));
			foreach ($paths as $path){
				if(import($path.$name)) {
					// 如果加载类成功则返回
					return ;
				}
			}
		}
	}
	return ;
}

// 优化的require_once
function require_cache($filename)
{
	static $_importFiles = array();
	$filename   =  realpath($filename);
	if (!isset($_importFiles[$filename])) {
		if(file_exists_case($filename)){
			require $filename;
			$_importFiles[$filename] = true;
		}
		else
		{
			$_importFiles[$filename] = false;
		}
	}
	return $_importFiles[$filename];
}

// 区分大小写的文件存在判断
function file_exists_case($filename) {
	if(is_file($filename)) {
		if(IS_WIN && C('APP_FILE_CASE')) {
			if(basename(realpath($filename)) != basename($filename))
			return false;
		}
		return true;
	}
	return false;
}

/**
 +----------------------------------------------------------
 * 导入所需的类库 同java的Import
 * 本函数有缓存功能
 +----------------------------------------------------------
 * @param string $class 类库命名空间字符串
 * @param string $baseUrl 起始路径
 * @param string $ext 导入的文件扩展名
 +----------------------------------------------------------
 * @return boolen
 +----------------------------------------------------------
 */
function import($class,$baseUrl = '',$ext='.class.php')
{
	static $_file = array();
	static $_class = array();
	$class    =   str_replace(array('.','#'), array('/','.'), $class);
	if('' === $baseUrl && false === strpos($class,'/')) {
		// 检查别名导入
		return alias_import($class);
	}    //echo('<br>'.$class.$baseUrl);
	if(isset($_file[$class.$baseUrl]))
	return true;
	else
	$_file[$class.$baseUrl] = true;
	$class_strut = explode("/",$class);
	if(empty($baseUrl)) {
		if('@'==$class_strut[0] || APP_NAME == $class_strut[0] ) {
			//加载当前项目应用类库
			$baseUrl   =  dirname(LIB_PATH);
			$class =  str_replace(array(APP_NAME.'/','@/'),LIB_DIR.'/',$class);
		}elseif(in_array(strtolower($class_strut[0]),array('think','org','com'))) {
			//加载ThinkPHP基类库或者公共类库
			// think 官方基类库 org 第三方公共类库 com 企业公共类库
			$baseUrl =  THINK_PATH.'/Lib/';
		}else {
			// 加载其他项目应用类库
			$class    =   substr_replace($class, '', 0,strlen($class_strut[0])+1);
			$baseUrl =  APP_PATH.'/../'.$class_strut[0].'/'.LIB_DIR.'/';
		}
	}
	if(substr($baseUrl, -1) != "/")    $baseUrl .= "/";
	$classfile = $baseUrl . $class . $ext;
	if($ext == '.class.php' && is_file($classfile)) {
		// 冲突检测
		$class = basename($classfile,$ext);
		if(isset($_class[$class]))
		throw_exception(L('_CLASS_CONFLICT_').':'.$_class[$class].' '.$classfile);
		$_class[$class] = $classfile;
	}
	//导入目录下的指定类库文件
	return require_cache($classfile);
}

/**
 +----------------------------------------------------------
 * 基于命名空间方式导入函数库
 * load('@.Util.Array')
 +----------------------------------------------------------
 * @param string $name 函数库命名空间字符串
 * @param string $baseUrl 起始路径
 * @param string $ext 导入的文件扩展名
 +----------------------------------------------------------
 * @return void
 +----------------------------------------------------------
 */
function load($name,$baseUrl='',$ext='.php') {
	$name    =   str_replace(array('.','#'), array('/','.'), $name);
	if(empty($baseUrl)) {
		if(0 === strpos($name,'@/')) {
			//加载当前项目函数库
			$baseUrl   =  APP_PATH.'/Common/';
			$name =  substr($name,2);
		}else{
			//加载ThinkPHP 系统函数库
			$baseUrl =  THINK_PATH.'/Common/';
		}
	}
	if(substr($baseUrl, -1) != "/")    $baseUrl .= "/";
	include $baseUrl . $name . $ext;
}

// 快速导入第三方框架类库
// 所有第三方框架的类库文件统一放到 系统的Vendor目录下面
// 并且默认都是以.php后缀导入
function vendor($class,$baseUrl = '',$ext='.php')
{
	if(empty($baseUrl))  $baseUrl    =   VENDOR_PATH;
	return import($class,$baseUrl,$ext);
}

// 快速定义和导入别名
function alias_import($alias,$classfile='') {
	static $_alias   =  array();
	if('' !== $classfile) {
		// 定义别名导入
		$_alias[$alias]  = $classfile;
		return ;
	}
	if(is_string($alias)) {
		if(isset($_alias[$alias]))
		return require_cache($_alias[$alias]);
	}elseif(is_array($alias)){
		foreach ($alias as $key=>$val)
		$_alias[$key]  =  $val;
		return ;
	}
	return false;
}

/**
 +----------------------------------------------------------
 * D函数用于实例化Model
 +----------------------------------------------------------
 * @param string name Model名称
 * @param string app Model所在项目
 +----------------------------------------------------------
 * @return Model
 +----------------------------------------------------------
 */
function D($name='',$app='')
{
	static $_model = array();
	if(empty($name)) return new Model;
	if(empty($app))   $app =  C('DEFAULT_APP');
	if(isset($_model[$app.$name]))
	return $_model[$app.$name];
	$OriClassName = $name;
	if(strpos($name,C('APP_GROUP_DEPR'))) {
		$array   =  explode(C('APP_GROUP_DEPR'),$name);
		$name = array_pop($array);
		$className =  $name.'Model';
		import($app.'.Model.'.implode('.',$array).'.'.$className);
	}else{
		$className =  $name.'Model';
		import($app.'.Model.'.$className);
	}
	if(class_exists($className)) {
		$model = new $className();
	}else {
		$model  = new Model($name);
	}
	$_model[$app.$OriClassName] =  $model;
	return $model;
}

/**
 +----------------------------------------------------------
 * newD函数用于实例化Model
 * by xinqiyang 20100528
 +----------------------------------------------------------
 * @param string name Model名称
 * @param string app Model所在项目
 +----------------------------------------------------------
 * @return Model
 +----------------------------------------------------------
 */
function newD($name='')
{
	static $_model = array();
	//if(empty($name)) return new Model;
	//if(empty($app))   $app =  C('DEFAULT_APP');
	if(isset($_model[$name]))
	return $_model[$name];
	$OriClassName = $name;
	//    if(strpos($name,C('APP_GROUP_DEPR'))) {
	//        $array   =  explode(C('APP_GROUP_DEPR'),$name);
	//        $name = array_pop($array);
	//        $className =  $name.'Model';
	//        import($app.'.Model.'.implode('.',$array).'.'.$className);
	//    }else{
	//        $className =  $name.'Model';
	//        import($app.'.Model.'.$className);
	//    }
	$className =  $name.'Model';
	import('Model.'.$className);
	if(class_exists($className)) {
		$model = new $className();
	}
	$_model[$OriClassName] =  $model;
	return $model;
}

/**
 +----------------------------------------------------------
 * M函数用于实例化一个没有模型文件的Model
 +----------------------------------------------------------
 * @param string name Model名称
 +----------------------------------------------------------
 * @return Model
 +----------------------------------------------------------
 */
function M($name='',$class='Model') {
	static $_model = array();
	if(!isset($_model[$name.'_'.$class]))
	$_model[$name.'_'.$class]   = new $class($name);
	return $_model[$name.'_'.$class];
}

/**
 +----------------------------------------------------------
 * A函数用于实例化Action
 +----------------------------------------------------------
 * @param string name Action名称
 * @param string app Model所在项目
 * @param string actionName 执行Action中的actionName操作(不为空有效)
 * @param array args 执行actionName操作时附带的参数
 +----------------------------------------------------------
 * @return Action
 +----------------------------------------------------------
 */
function A($name,$app='@', $actionName='', $args=array())
{
	static $_action = array();
	if(isset($_action[$app.$name]))
	return $_action[$app.$name];
	$OriClassName = $name;
	if(strpos($name,C('APP_GROUP_DEPR'))) {
		$array   =  explode(C('APP_GROUP_DEPR'),$name);
		$name = array_pop($array);
		$className =  $name.'Action';
		import($app.'.Action.'.implode('.',$array).'.'.$className);
	}else{
		$className =  $name.'Action';
		import($app.'.Action.'.$className);
	}
	if(class_exists($className)) {
		$action = new $className();
		$_action[$app.$OriClassName] = $action;
		if('' != $actionName) {
			if(method_exists($action,$actionName)) {
				$action->$actionName($args);
			} else {
				throw_exception(L('_ERROR_ACTION_').':'.$actionName);
			}
		} else {
			return $action;
		}
	}else {
		return false;
	}
}

// 远程调用模块的操作方法
function R($module,$action,$app='@') {
	$class = A($module,$app);
	if($class)
	return call_user_func(array(&$class,$action));
	else
	return false;
}

// 获取和设置语言定义(不区分大小写)
function L($name=null,$value=null) {
	static $_lang = array();
	// 空参数返回所有定义
	if(empty($name)) return $_lang;
	// 判断语言获取(或设置)
	// 若不存在,直接返回全大写$name
	if (is_string($name) )
	{
		$name = strtoupper($name);
		if (is_null($value))
		return isset($_lang[$name]) ? $_lang[$name] : $name;
		$_lang[$name] = $value;// 语言定义
		return;
	}
	// 批量定义
	if (is_array($name))
	$_lang = array_merge($_lang,array_change_key_case($name,CASE_UPPER));
	return;
}

// 获取配置值
function C($name=null,$value=null)
{
	static $_config = array();
	// 无参数时获取所有
	if(empty($name)) return $_config;
	// 优先执行设置获取或赋值
	if (is_string($name))
	{
		if (!strpos($name,'.')) {
			$name = strtolower($name);
			if (is_null($value))
			return isset($_config[$name])? $_config[$name] : null;
			$_config[$name] = $value;
			return;
		}
		// 二维数组设置和获取支持
		$name = explode('.',$name);
		$name[0]   = strtolower($name[0]);
		if (is_null($value))
		return isset($_config[$name[0]][$name[1]]) ? $_config[$name[0]][$name[1]] : null;
		$_config[$name[0]][$name[1]] = $value;
		return;
	}
	// 批量设置
	if(is_array($name))
	return $_config = array_merge($_config,array_change_key_case($name));
	return null;// 避免非法参数
}

// 处理标签
function tag($name,$params=array()) {
	$tags   =  C('_tags_.'.$name);
	if($tags) {
		foreach ($tags   as $key=>$call){
			if(is_callable($call))
			$result = call_user_func_array($call,$params);
		}
		return $result;
	}
	return false;
}

// 执行行为
function B($name) {
	$class = $name.'Behavior';
	require_cache(LIB_PATH.'Behavior/'.$class.'.class.php');
	$behavior   =  new $class();
	$behavior->run();
}

/**
 * 渲染输出Widget
 * @param $name 类名称
 * @param $data 参数
 * @param $return 返回内容
 */
function W($name,$data=array(),$return=false) {
	$class = $name.'Widget';
	require_cache(LIB_PATH.'Widget/'.$class.'.class.php');
	if(!class_exists($class))
	throw_exception(L('_CLASS_NOT_EXIST_').':'.$class);
	$widget  =  Think::instance($class);
	$content = $widget->render($data);
	if($return)
	return $content;
	else
	echo $content;
}

/**
 * 全局缓存设置和读取
 * @param $name 类名
 * @param $value 值
 * @param $expire 过期时间
 * @param $type 类型
 */
function S($name,$value='',$expire='',$type='') {
	static $_cache = array();
	alias_import('Cache');
	//取得缓存对象实例
	$cache  = Cache::getInstance($type);
	if('' !== $value) {
		if(is_null($value)) {
			// 删除缓存
			$result =   $cache->rm($name);
			if($result)   unset($_cache[$type.'_'.$name]);
			return $result;
		}else{
			// 缓存数据
			$cache->set($name,$value,$expire);
			$_cache[$type.'_'.$name]     =   $value;
		}
		return ;
	}
	if(isset($_cache[$type.'_'.$name]))
	return $_cache[$type.'_'.$name];
	// 获取缓存数据
	$value      =  $cache->get($name);
	$_cache[$type.'_'.$name]     =   $value;
	return $value;
}

// 快速文件数据读取和保存 针对简单类型数据 字符串、数组
function F($name,$value='',$path=DATA_PATH) {
	static $_cache = array();
	$filename   =   $path.$name.'.php';
	if('' !== $value) {
		if(is_null($value)) {
			// 删除缓存
			return unlink($filename);
		}else{
			// 缓存数据
			$dir   =  dirname($filename);
			// 目录不存在则创建
			if(!is_dir($dir))  mkdir($dir);
			$_cache[$name]   =   $value;
			return file_put_contents($filename,"<?php\nreturn ".var_export($value,true).";\n?>");
		}
	}
	if(isset($_cache[$name])) return $_cache[$name];
	// 获取缓存数据
	if(is_file($filename)) {
		$value   =  include $filename;
		$_cache[$name]   =   $value;
	}else{
		$value  =   false;
	}
	return $value;
}

// 根据PHP各种类型变量生成唯一标识号
function to_guid_string($mix)
{
	if(is_object($mix) && function_exists('spl_object_hash')) {
		return spl_object_hash($mix);
	}elseif(is_resource($mix)){
		$mix = get_resource_type($mix).strval($mix);
	}else{
		$mix = serialize($mix);
	}
	return md5($mix);
}

//[RUNTIME]
// 编译文件
function compile($filename,$runtime=false) {
	$content = file_get_contents($filename);
	if(true === $runtime)
	// 替换预编译指令
	$content = preg_replace('/\/\/\[RUNTIME\](.*?)\/\/\[\/RUNTIME\]/s','',$content);
	$content = substr(trim($content),5);
	if('?>' == substr($content,-2))
	$content = substr($content,0,-2);
	return $content;
}

// 去除代码中的空白和注释
function strip_whitespace($content) {
	$stripStr = '';
	//分析php源码
	$tokens =   token_get_all ($content);
	$last_space = false;
	for ($i = 0, $j = count ($tokens); $i < $j; $i++)
	{
		if (is_string ($tokens[$i]))
		{
			$last_space = false;
			$stripStr .= $tokens[$i];
		}
		else
		{
			switch ($tokens[$i][0])
			{
				//过滤各种PHP注释
				case T_COMMENT:
				case T_DOC_COMMENT:
					break;
					//过滤空格
				case T_WHITESPACE:
					if (!$last_space)
					{
						$stripStr .= ' ';
						$last_space = true;
					}
					break;
				default:
					$last_space = false;
					$stripStr .= $tokens[$i][1];
			}
		}
	}
	return $stripStr;
}
// 根据数组生成常量定义
function array_define($array) {
	$content = '';
	foreach($array as $key=>$val) {
		$key =  strtoupper($key);
		if(in_array($key,array('THINK_PATH','APP_NAME','APP_PATH','RUNTIME_PATH','RUNTIME_ALLINONE','THINK_MODE')))
		$content .= 'if(!defined(\''.$key.'\')) ';
		if(is_int($val) || is_float($val)) {
			$content .= "define('".$key."',".$val.");";
		}elseif(is_bool($val)) {
			$val = ($val)?'true':'false';
			$content .= "define('".$key."',".$val.");";
		}elseif(is_string($val)) {
			$content .= "define('".$key."','".addslashes($val)."');";
		}
	}
	return $content;
}
//[/RUNTIME]

// 循环创建目录
function mk_dir($dir, $mode = 0755)
{
	if (is_dir($dir) || @mkdir($dir,$mode)) return true;
	if (!mk_dir(dirname($dir),$mode)) return false;
	return @mkdir($dir,$mode);
}

// 自动转换字符集 支持数组转换
function auto_charset($fContents,$from,$to){
	$from   =  strtoupper($from)=='UTF8'? 'utf-8':$from;
	$to       =  strtoupper($to)=='UTF8'? 'utf-8':$to;
	if( strtoupper($from) === strtoupper($to) || empty($fContents) || (is_scalar($fContents) && !is_string($fContents)) ){
		//如果编码相同或者非字符串标量则不转换
		return $fContents;
	}
	if(is_string($fContents) ) {
		if(function_exists('mb_convert_encoding')){
			return mb_convert_encoding ($fContents, $to, $from);
		}elseif(function_exists('iconv')){
			return iconv($from,$to,$fContents);
		}else{
			return $fContents;
		}
	}
	elseif(is_array($fContents)){
		foreach ( $fContents as $key => $val ) {
			$_key =     auto_charset($key,$from,$to);
			$fContents[$_key] = auto_charset($val,$from,$to);
			if($key != $_key )
			unset($fContents[$key]);
		}
		return $fContents;
	}
	else{
		return $fContents;
	}
}

// xml编码
function xml_encode($data,$encoding='utf-8',$root="think") {
	$xml = '<?xml version="1.0" encoding="'.$encoding.'"?>';
	$xml.= '<'.$root.'>';
	$xml.= data_to_xml($data);
	$xml.= '</'.$root.'>';
	return $xml;
}

function data_to_xml($data) {
	if(is_object($data)) {
		$data = get_object_vars($data);
	}
	$xml = '';
	foreach($data as $key=>$val) {
		is_numeric($key) && $key="item id=\"$key\"";
		$xml.="<$key>";
		$xml.=(is_array($val)||is_object($val))?data_to_xml($val):$val;
		list($key,)=explode(' ',$key);
		$xml.="</$key>";
	}
	return $xml;
}

/**
 * 获取项目当前的URL(index.php对应的URL绝对路径)
 +----------------------------------------------------------
 * 例如：
 *     本地路径      ：/htdocs/project_name/index.php
 *     URL绝对路径   ：http://localhost/project_name/index.php
 *     去除index.php : http://localhost/project_name/home/index/do/showuser
 *
 * 则，返回：
 *     http://localhost/project_name
 +----------------------------------------------------------
 */
function getSiteUrl() {
	$local_path = dirname($_SERVER['SCRIPT_NAME']);
	//Note that when using ISAPI with IIS, the value will be off if the request was not made through the HTTPS protocol.
	$uri = 'http'.(in_https_mode() ?'s':'').'://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
	return substr($uri,0,strpos($uri,$local_path)+strlen($local_path));
}

/**
 * Page is in https mode
 * return true or false
 */
function in_https_mode()
{
	if (isset($_SERVER['HTTPS']) && !empty($_SERVER['HTTPS']))
	{
		return TRUE;
	}

	return FALSE;
}

/**
 +----------------------------------------------------------
 * Cookie 设置、获取、清除
 +----------------------------------------------------------
 * 1 获取cookie: cookie('name')
 * 2 清空当前设置前缀的所有cookie: cookie(null)
 * 3 删除指定前缀所有cookie: cookie(null,'think_') | 注：前缀将不区分大小写
 * 4 设置cookie: cookie('name','value') | 指定保存时间: cookie('name','value',3600)
 * 5 删除cookie: cookie('name',null)
 +----------------------------------------------------------
 * $option 可用设置prefix,expire,path,domain
 * 支持数组形式对参数设置:cookie('name','value',array('expire'=>1,'prefix'=>'think_'))
 * 支持query形式字符串对参数设置:cookie('name','value','prefix=tp_&expire=10000')
 */
function cookie($name,$value='',$option=null)
{
	// 默认设置
	$config = array(
        'prefix' => C('COOKIE_PREFIX'), // cookie 名称前缀
        'expire' => C('COOKIE_EXPIRE'), // cookie 保存时间
        'path'   => C('COOKIE_PATH'),   // cookie 保存路径
        'domain' => C('COOKIE_DOMAIN'), // cookie 有效域名
	);
	// 参数设置(会覆盖黙认设置)
	if (!empty($option)) {
		if (is_numeric($option))
		$option = array('expire'=>$option);
		elseif( is_string($option) )
		parse_str($option,$option);
		$config = array_merge($config,array_change_key_case($option));
	}
	// 清除指定前缀的所有cookie
	if (is_null($name)) {
		if (empty($_COOKIE)) return;
		// 要删除的cookie前缀，不指定则删除config设置的指定前缀
		$prefix = empty($value)? $config['prefix'] : $value;
		if (!empty($prefix))// 如果前缀为空字符串将不作处理直接返回
		{
			foreach($_COOKIE as $key=>$val) {
				if (0 === stripos($key,$prefix)){
					setcookie($_COOKIE[$key],'',time()-3600,$config['path'],$config['domain']);
					unset($_COOKIE[$key]);
				}
			}
		}
		return;
	}
	$name = $config['prefix'].$name;
	if (''===$value){
		return isset($_COOKIE[$name]) ? $_COOKIE[$name] : null;// 获取指定Cookie
	}else {
		if (is_null($value)) {
			setcookie($name,'',time()-3600,$config['path'],$config['domain']);
			unset($_COOKIE[$name]);// 删除指定cookie
		}else {
			// 设置cookie
			$expire = !empty($config['expire'])? time()+ intval($config['expire']):0;
			setcookie($name,$value,$expire,$config['path'],$config['domain']);
			$_COOKIE[$name] = $value;
		}
	}
}
?>